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Common Questions: What does "Step-Open" mean for my installation
When you're dealing with 2-pipe or 4-pipe fan coil unit (FCU) systems
The York S1-324-36081-551 Module is a factory-programmed control component engineered specifically for 1HP EON ECM motors
the 703023K is the direct engineering replacement for the 703023
Trane CNT0532 Fan Limit R-410A Common Questions: What does "Step-Open"The Trane CNT0532 (often superseded by CNT00532) is a heavy duty OEM replacement fan limit switch designed for precision thermal regulation in residential and light commercial air handlers. This A R Fan Limit is calibrated for high performance safety, featuring a critical 150F Open (Op) and 130F Close (Cl) threshold. By monitoring supply plenum temperatures, the CNT0532 prevents the heat exchanger from reaching unsafe levels during heating cycles